Simulation and Experimental Evaluation of Air Cooling for Motorcycle Engine

Memon, Zakirhusen K; Sundararajan, T.; Lakshminarasimhan, Venkatnarayanan; Babu, Y Ramachandra; Harne, Vinay

doi:10.4271/2006-32-0099

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…Shojaefard [6] used the empirical formula to determine the thermal boundary conditions of the cooling channel of the cylinder head, and the temperature and thermal stress field of the cylinder head are calculated by applying third kinds of boundary on the surface of the cylinder head. Memon [7] analyzed the heat transfer process of the cylinder head of a air-cooled diesel engine. The heat transfer results of the solid part were calculated by ANSYS.…”

Section: A Heat Transfer Characteristics In Combustion Chambermentioning

confidence: 99%

Recent Advancement of Cooling and Heat Transfer of Diesel Engine

Yang

Liu

Jiao³

et al. 2018

Proceedings of the 2018 2nd International Conference on Applied Mathematics, Modelling and Statistics Application (AMMSA 2018)

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The study of diesel cooling and heat transfer can improve thermal efficiency and reduce exhaust emissions. The research on the heat transfer characteristics of diesel engine block, the influence of the cooling medium control parameters on the heat transfer characteristics of the cooling system and environmental boundary conditions on the heat transfer characteristics of the diesel engine are elaborated, which as the breakthrough point of the research on the cooling heat transfer of diesel engine. The further development direction is discussed. It is pointed out that the research on the content of the best nanoparticles in the nanofluids, the durability test of the low heat rejection (LHR) diesel engine and the intelligent integrated control of the cooling system of the diesel engine at plateau are the key points of the research on the cooling and heat transfer of the diesel engine in the future.

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Section: A Heat Transfer Characteristics In Combustion Chambermentioning

confidence: 99%

Recent Advancement of Cooling and Heat Transfer of Diesel Engine

Yang

Liu

Jiao³

et al. 2018

Proceedings of the 2018 2nd International Conference on Applied Mathematics, Modelling and Statistics Application (AMMSA 2018)

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“…About 1/3 of the total chemical energy that enters an engine as fuel is converted to useful crankshaft work, and about another 1/3 of the total energy that must be dissipated to the surroundings by some mode of heat transfer and friction. This leaves about 1/3 of the fuel energy is carried away from the engine in the form of enthalpy and chemical energy with the exhaust flow [1]. The high temperature will impact the exhaust system itself and its surrounding environment.…”

Section: Introductionmentioning

confidence: 99%

Mechanism Investigations of Fluid-Solid Conjugate Heat Transfers for Vehicle Exhaust System

Xiao

2012

AMM

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A conjugate heat transfer study was undertaken using STAR-CD. The boundary conditions are given by vehicle operation and engine operation. All three mechanisms of heat transfer, i.e., convection, conduction, and radiation, were included in the analysis. The vehicle exhaust system components temperatures were analysized at certain several separate variables such as the velocity and temperature of the exhaust gases which depend on the engine operation conditions and the velocity and temperature of the external airflows which depend on vehicle operations. The results showed all three mechanisms of heat transfer and increased quantitative understanding of the flow conditions surrounding vehicle exhaust system.

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“…At the end of the highest computational demand, 3D numerical models simulate physical phenomena with great accuracy and resolution [46]. They are usually employed for component design [47] [48]. 3D modeling is also useful for research of complex physical phenomena, but in that case it is necessary to bear in mind the simplifying hypotheses and boundary conditions under which the model was tested [49].…”

Section: Introductionmentioning

confidence: 99%

A contribution to the global modeling of heat transfer processes in Diesel engines

Iborra¹

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Current challenges in research and development of powertrains demand new computational tools capable of simulating vehicle operation under very diverse conditions. This is due, among other reasons, to new homologation standards in the automotive sector requiring compliance of exhaust emissions regulations under any possible driving condition on the road. Global engine or vehicle models provide many advantages to engineers because they allow to reproduce the entire system under study, considering the physical processes that take place in different components and the interactions among them. This thesis aims to enable the modeling of heat transfer processes in a complete engine simulation tool developed at CMT-Motores Térmicos research institute. This 0D/1D simulation tool is called Virtual Engine Model (VEMOD).The development of heat transfer models comprises the engine block and the ancillary systems. The model of heat transfer in the engine block deals with the central problem of in-cylinder convection by means of a combination of experimental research, CFD simulation and multizone 0D modeling. The other thermal processes present in the engine block are examined in order to implement suitable submodels. Once the model is complete, it undergoes a validation with experimental transient tests. Afterwards, the ancillary systems for engine thermal management are brought into focus. These systems are considered by means of two new models: a model of heat exchangers and a model of thermo-hydraulic circuits. The development of those models is reported in detail.Lastly, with the referred thermal models integrated in the global simulation tool, a validation study is undertaken. The goal is to validate the ability of the Virtual Engine Model to capture the thermal response of a real engine under various operating conditions. To achieve that, an experimental campaign combining tests under steady-state operation, under transient operation and at different temperatures is conducted in parallel to the corresponding simulation campaign. The capacity of the global engine simulations to replicate the measured thermal evolution is finally demonstrated.As you set out for Ithaka hope the voyage is a long one, full of adventure, full of discovery. Cavafy AcknowledgmentsA PhD is a long voyage of discovery and personal growth. Far from being a solitary journey, there are many people who intervene to make possible that all efforts reach a good conclusion. Having reached this point, I wish to acknowledge all people and institutions that have contributed to this thesis by one means or another.First of all, I want to thank my PhD supervisor, Prof. Pablo Olmeda, for his teachings and support over these years. I'm also grateful to Dr. Antonio García for sharing with me his invaluable knowledge about research communication. Another important figure in this period has been Dr. Jaime Martín, from whom I have learned a lot by collaborating in research projects. Also thanks to Dr. Francisco Arnau, for his compromise in building the Virtual Engine...

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Simulation and Experimental Evaluation of Air Cooling for Motorcycle Engine

Cited by 8 publications

References 5 publications

Recent Advancement of Cooling and Heat Transfer of Diesel Engine

Recent Advancement of Cooling and Heat Transfer of Diesel Engine

Mechanism Investigations of Fluid-Solid Conjugate Heat Transfers for Vehicle Exhaust System

A contribution to the global modeling of heat transfer processes in Diesel engines

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